Fractional CMO & Strategic Growth Advisor

I turn B2B growth into a predictable, measurable and scalable system.

I help B2B companies structure their Go-To-Market strategy and improve the return on their marketing and demand generation investments. No loose recommendations. A full system.

Free diagnostic View services
ROIX System — 3 Phases
01
Diagnostic
Full X-ray of your commercial system. We identify the real levers and bottlenecks.
02
System Design
Custom growth architecture: Go-To-Market, team structure and revenue model.
03
Implementation
Real execution with the team. Measurement, adjustment and continuous scaling.
+35%
Commercial efficiency
+25%
Average revenue
−20%
Operational waste
The diagnosis

The problem isn't execution.
It's the lack of clarity.

🧭

Teams executing without clear direction or strategic alignment.

🏗️

Poorly defined business models that limit scalability from the start.

💸

Investing before validating. Spending before understanding what works.

🔁

Growth with friction: lots of effort, few measurable results.

🎯

Confusing activity with progress. Doing many things, but not the right ones.

“
Most businesses don't fail from lack of ideas...
they fail from lack of focus.

Before doing more, make sure you're
doing the right thing.
— Santiago Castellanos Rey, ROIX Growth System
The method

ROIX System:
From clarity to execution.

ROIX organizes growth into clear stages. We don't sell isolated services — we design the right path for where your business stands.

01
ROIX Diagnostic
Full X-ray of your commercial system. We identify the real growth levers and the bottlenecks slowing your revenue.
Business map
02
System Design
Custom growth architecture. Go-To-Market strategy, team structure and a predictable revenue model.
Structure & priorities
03
Implementation
Real execution alongside your team. Measuring results, real-time adjustments and sustainable system scaling.
Execution & scale
How we work

No matter where you are,
there's a clear entry point.

Your situation
💡
"I don't have a clear model"
🔍
"Something isn't working"
🧭
"I need strategic direction"
⚡
"I want concrete results now"
🚀
"I need a growth leader"
Your ROIX solution
→
Starting Point
→
Diagnostic
→
Advisory
→
Strategic Sprint
→
Fractional CMO
ROIX Portfolio

Five services.
One single system.

Each line is designed for a different stage of B2B growth.

Starting Point
Model
Strategic sprint for business model definition. Avoid building on wrong foundations before scaling or investing.
Duration
2 weeks
Output
Model + roadmap
Ideal client
Pre-MVP Founders
Involvement
Medium
Diagnostic
Audit
Identify what's not working. Business and funnel analysis, key metrics and actionable plan with immediate quick wins.
Duration
1–2 weeks
Output
Actionable plan
Ideal client
Startups with traction
Involvement
Medium
Advisory
Strategy
Continuous strategic direction. Regular sessions, metrics review and key decisions for teams operating without clear focus.
Duration
1–3 months
Output
Clarity + roadmap
Ideal client
Unfocused teams
Involvement
Medium
Strategic Sprint
Execution
From strategy to results. Intensive execution of key initiatives: GTM experiments, funnel optimization and tactical implementation.
Duration
2–6 weeks
Output
Measurable results
Ideal client
Know what, not how
Involvement
High
Fractional CMO
Leadership
The highest level of impact. I act as an integrated growth leader, connecting strategy and execution within your team. Strategic leadership, KPI management, implementation and total business alignment.
Duration
3–6 months
Output
Working system
Ideal client
No senior growth leader
Involvement
High
Real impact

The result isn't more marketing.
It's sustainable growth.

+35%
Commercial efficiencythrough alignment of marketing and sales teams.
+25%
Revenue increaseby optimizing the funnel and eliminating leaks in the commercial process.
−20%
Waste reductionin operational and tactical efforts with no measurable return.
The advisor

Santiago
Castellanos Rey

I work with executive teams as a strategic advisor or fractional growth leader, supporting key go-to-market, marketing and revenue generation decisions.

Direct
"We detect revenue leaks in 48 hours, not 3 months."
Systemic
"We build the sales architecture your team will run with precision."
C-Level Ally
"We bring expert confidence with the empathy of someone who understands your business."
Data-Driven
"Predictability is your strategy's new superpower."
Santiago Castellanos Rey
Strategic Growth Advisor & Fractional CMO
📱+57 316 520 6878
✉️santiago@roix.com.co
🔗linkedin.com/in/santiagocastellanosrey
🌐roix.com.co
"At ROIX, we don't just manage marketing; we build the systems that accelerate the future of businesses."
Start here

Ready to activate your revenue engine?

→Free initial diagnostic session, no commitment
→45 minutes directly with Santiago Castellanos
→Identify the 3 highest-impact levers in your business
→Clarity on the right entry point for your stage
Request your diagnostic session
Response within 24 business hours.

If the form doesn't load, reach out directly. santiago@roix.com.co